/Engine/Plugins/Runtime/GameplayAbilities/Source/GameplayAbilities/Public/GameplayAbilitySpec.h
Data tied to a specific activation of an ability. -Tell us whether we are the authority, if we are predicting, confirmed, etc. -Holds current and previous PredictionKey -Generally not meant to be subclassed in projects. -Passed around by value since the struct is small.
[USTRUCT](Programming/UnrealArchitecture/Reference/Structs)([BlueprintType](Programming/UnrealArchitecture/Reference/Structs/Specifiers/BlueprintType)) struct FGameplayAbilityActivationInfo
TEnumAsByte<EG...
ActivationMode
Activation status of this ability
uint8: 1
bCanBeEndedByOtherInstance
An ability that runs on multiple game instances can be canceled by a remote instance, but only if that remote instance has already confirmed starting it.